Jawaban:
c. 3 cm
Penjelasan:
Gaya antara q' dan q1
F₁ = k.q1.q'/r₁²
F₁ = 9.10⁹. 1.10⁻⁶. 10⁻². 10⁻⁶/0,01²
F₁ = 9. 10⁻¹ = 0,9 N ke kanan
Gaya antara q' dan q2
F₂ = k.q2.q'/r₁²
F₂ = 9.10⁹. 16.10⁻⁶. 10⁻². 10⁻⁶/(x+0,01)²
F₂ = 144. 10⁻⁵/(x+0,01)² N kekiri
Karena q' tetap diam maka
F₁ = F₂
0,9 = 144. 10⁻⁵/ (x+0,01)²
(x+0,01)² = 160.10⁻⁵
(x+0,01)²= 0,0016
x+0,01 = 0,04
x = 0,03 m = 3 cm
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Jawaban:
c. 3 cm
Penjelasan:
Gaya antara q' dan q1
F₁ = k.q1.q'/r₁²
F₁ = 9.10⁹. 1.10⁻⁶. 10⁻². 10⁻⁶/0,01²
F₁ = 9. 10⁻¹ = 0,9 N ke kanan
Gaya antara q' dan q2
F₂ = k.q2.q'/r₁²
F₂ = 9.10⁹. 16.10⁻⁶. 10⁻². 10⁻⁶/(x+0,01)²
F₂ = 144. 10⁻⁵/(x+0,01)² N kekiri
Karena q' tetap diam maka
F₁ = F₂
0,9 = 144. 10⁻⁵/ (x+0,01)²
(x+0,01)² = 160.10⁻⁵
(x+0,01)²= 0,0016
x+0,01 = 0,04
x = 0,03 m = 3 cm